Combiner Joins L1, L2 GPS Signals

Also designed for GPS applications, model AD1227-1575C102 from Anatech Electronics is a power combiner targeting L1 and L2 signals. It covers an L-band center frequency of 1227.6 MHz with a passband of 1215.6 to 1239.6 MHz. It contributes more than 20 dB signal rejection from 1525 to 1559 MHz. It handles an L2 center frequency of 1575.42 MHz with a passband of 1563.52 to 1587.42 MHz, achieving more than 60 dB signal rejection from 1626.5 to 1660.5 MHz. The passband insertion loss is less than 1 dB while passband return loss is greater than 15 dB. Group-delay variations are controlled to a mere 5 ns in both bands. The signal combiner, which can handle input power to +35 dBm, measures 3.2 x 2.2 x 1.6 in. with SMA female connectors.

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